CPC A61B 5/7221 (2013.01) [A61B 5/0205 (2013.01); A61B 5/7246 (2013.01); G16H 40/63 (2018.01); A61B 5/02405 (2013.01); A61B 5/02416 (2013.01); A61B 5/1102 (2013.01); A61B 5/35 (2021.01); A61B 7/04 (2013.01)] | 15 Claims |
1. A bio-signal quality assessment apparatus, comprising:
a bio-signal obtainer configured to obtain a bio-signal; and
a processor configured to extract periodic signals from the obtained bio-signal, determine time variability of the bio-signal based on a difference between a time duration of each of the periodic signals and an average time duration of the periodic signals, and determine a signal quality index based on the time variability and a combination of two or more K-adjacent similarities having different K distance values between the extracted periodic signals which are apart from each other.
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